密度-电导-温度法测量铀-酸体系中铀和硝酸

提出了密度-电导-温度法测量铀-酸溶液中铀和硝酸含量。建立铀-酸溶液的密度、电导率和铀质量浓度、硝酸浓度以及温度之间的数学模型，该模型为一非线性二元二次方程组。只要测出铀-酸溶液的温度、密度和电导率，代入上述方程组，即可由计算机计算出铀-酸体系中铀和硝酸浓度。结果表明：当铀-酸体系中铀质量浓度范围在50-200 g/L、硝酸浓度范围在1-4 mol/L 时，该法对铀和硝酸浓度的测量相对误差均在±5%之间。...

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Bibliographic Details
Published in核化学与放射化学 Vol. 37; no. 3; pp. 160 - 165
Main Author 邵少雄 刘权卫 范德军 朱海巧 吴继宗
Format Journal Article
LanguageChinese
Published 中国原子能科学研究院 放射化学研究所,北京,102413 2015
Subjects
密度
电导率
硝酸
铀
铀
nitric acid
电导率
硝酸
density
conductivity
密度
uranium
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ISSN0253-9950
DOI10.7538/hhx.2015.37.03.0160

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Summary:提出了密度-电导-温度法测量铀-酸溶液中铀和硝酸含量。建立铀-酸溶液的密度、电导率和铀质量浓度、硝酸浓度以及温度之间的数学模型，该模型为一非线性二元二次方程组。只要测出铀-酸溶液的温度、密度和电导率，代入上述方程组，即可由计算机计算出铀-酸体系中铀和硝酸浓度。结果表明：当铀-酸体系中铀质量浓度范围在50-200 g/L、硝酸浓度范围在1-4 mol/L 时，该法对铀和硝酸浓度的测量相对误差均在±5%之间。
Bibliography:SHAO Shao-xiong, LIU Quan-wei, FAN De-jun, ZHU Hai-qiao, WU Ji-zong（ China Institute of Atomic Energy, P. O. Box 275（88）, Beijing 102413, China）
11-2045/TL
uranium;nitric acid;density;conductivity
A method for determination of uranium and nitric acid in uranyl nitrate system was established through combination measurement of density-conductivity-temperature.A math-ematical model,which described the relationship between the concentration,temperature, density and conductivity,was obtained.This model was a set of non-linear dualistic quadrat-ic equations.Once the temperature,density and conductivity of uranyl nitrate system were measured,the concentration of uranium and nitric acid could be calculated by computer.The method was used to determine the concentration of uranium and nitric acid in uranyl nitrate system.The results show that the relative errors are between ＆#177;5% to uranium and nitric acid.
ISSN:0253-9950
DOI:10.7538/hhx.2015.37.03.0160